Multiply.90 ? 500
A. 45,000
B. 450,000
C. 14,000
D. 4500
Answer: A
Mathematics
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Evaluate the expression without using a calculator.(-1)3/7
A. - 
B. -1
C. 1
D. 0
Mathematics
Provide an appropriate response.Decide whether the expression is positive, negative, or zero. 
A. Positive B. Negative C. Zero
Mathematics
Show that the equation is not an identity by finding a value of x for which both sides are defined but not equal.cos x - cos x sinx = cos3 x
A. 
B. ?
C. 
D. 0
Mathematics
Answer the question.How would you express the product of two numbers, r and s?
Fill in the blank(s) with the appropriate word(s).
Mathematics